科幻小说是变革的文学。

解释：独来独往，独进独出，谁能阻碍他呢？

History is a nightmare from which I am trying to awake.

乳制品行业必须适应消费者偏好的变化。

"A book is a fragile creature, it suffers the wear of time, it fears rodents, the elements and clumsy hands. So the librarian protects the books not only against mankind but also against nature and devotes his life to this war with the forces of oblivion."

名称的意义就是它的指称对象。

决策分析是根据价值和不确定性评估复杂选择的学科。